APA (7th ed.) Citation

Walraven, M. G. (1989). Psychology 89/90 (19ª ed.). The Duchkin.

Chicago Style (17th ed.) Citation

Walraven, Michael G. Psychology 89/90. 19ª ed. The Duchkin, 1989.

MLA (9th ed.) Citation

Walraven, Michael G. Psychology 89/90. 19ª ed. The Duchkin, 1989.

Warning: These citations may not always be 100% accurate.